


Coastal Waters Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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365 FZUS51 KGYX 241751 CWFGYX Coastal Waters Forecast National Weather Service Gray ME 151 PM EDT Sun Aug 24 2025 COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM ANZ100-250800- 151 PM EDT Sun Aug 24 2025 .Synopsis for Stonington ME to Merrimack River Ma out to 25 NM Residual swell will continue to gradually diminish this evening. Southerly winds will remain gusty at times through this evening tapering off overnight. A cold front will approach the waters on Monday and turn winds offshore after it crosses. An offshore low pressure system may bring seas back up to near 5 ft outside of the bays Monday night into Tuesday. $$ ANZ154-250800- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 151 PM EDT Sun Aug 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: S 5 ft at 5 seconds and E 4 ft at 11 seconds. .TONIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: S 5 ft at 5 seconds and E 4 ft at 11 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. Patchy fog in the morning. Scattered showers. Vsby 1 to 3 NM in the morning. .MON NIGHT...S winds 5 to 10 kt, becoming W with gusts up to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. Wave Detail: SE 3 ft at 7 seconds, becoming SE 4 ft at 8 seconds. .TUE...W winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 8 seconds. .TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .WED...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. $$ ANZ152-250800- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- 151 PM EDT Sun Aug 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 5 seconds and E 3 ft at 11 seconds. .TONIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: S 5 ft at 6 seconds and SE 2 ft at 10 seconds, becoming S 4 ft at 5 seconds and E 2 ft at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 9 seconds. Patchy fog in the morning. Scattered showers. Vsby 1 to 3 NM in the morning. .MON NIGHT...S winds around 5 kt, becoming W after midnight. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. Wave Detail: SE 3 ft at 6 seconds, becoming SE 5 ft at 8 seconds. Patchy fog. .TUE...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 9 seconds. .TUE NIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and S 2 ft at 7 seconds. .WED...W winds around 5 kt, becoming SW in the afternoon. Seas around 3 ft. .WED NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 3 ft. .THU...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. $$ ANZ150-250800- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- 151 PM EDT Sun Aug 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 10 seconds. .TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 6 seconds and SE 2 ft at 9 seconds. Patchy fog. Scattered showers after midnight. Vsby 1 to 3 NM. .MON...S winds around 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 9 seconds. Patchy fog in the morning. Scattered showers. Vsby 1 to 3 NM in the morning. .MON NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. Wave Detail: SE 2 ft at 7 seconds, becoming S 5 ft at 9 seconds. Patchy fog. .TUE...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 9 seconds. Patchy fog in the morning. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. .WED...W winds 5 to 10 kt. Seas 3 to 4 ft. .WED NIGHT...W winds 5 to 10 kt. Seas around 3 ft. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. $$ ANZ153-250800- Casco Bay- 151 PM EDT Sun Aug 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .TONIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Patchy fog after midnight with vsby 1 to 3 NM. .MON...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog in the morning. Scattered showers. Vsby 1 to 3 NM in the morning. .MON NIGHT...S winds around 5 kt, becoming W after midnight. Seas 2 to 3 ft. Patchy fog. .TUE...W winds 5 to 10 kt. Seas 2 to 4 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. .WED...W winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. .THU...SW winds 5 to 10 kt, becoming S with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming W after midnight. Seas 2 to 3 ft. $$ ANZ151-250800- Penobscot Bay- 151 PM EDT Sun Aug 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds around 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds. .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog. Scattered showers after midnight. Vsby 1 to 3 NM. .MON...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds. Patchy fog in the morning. Showers likely, mainly in the morning with vsby 1 to 3 NM. .MON NIGHT...S winds around 5 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. Patchy fog. .TUE...W winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog in the morning. .TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. .THU...W winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. .THU NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. $$